./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ........................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:24:35,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:24:35,564 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:24:35,571 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:24:35,571 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:24:35,571 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:24:35,572 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:24:35,573 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:24:35,574 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:24:35,575 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:24:35,576 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:24:35,576 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:24:35,576 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:24:35,577 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:24:35,577 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:24:35,578 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:24:35,578 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:24:35,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:24:35,580 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:24:35,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:24:35,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:24:35,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:24:35,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:24:35,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:24:35,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:24:35,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:24:35,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:24:35,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:24:35,584 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:24:35,584 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:24:35,584 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:24:35,585 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:24:35,585 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:24:35,585 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:24:35,585 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:24:35,586 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:24:35,586 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 15:24:35,593 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:24:35,593 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:24:35,593 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:24:35,593 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:24:35,593 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 15:24:35,594 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 15:24:35,594 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 15:24:35,595 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:24:35,595 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:24:35,596 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:24:35,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:24:35,596 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 15:24:35,597 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2018-12-08 15:24:35,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:24:35,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:24:35,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:24:35,624 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:24:35,624 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:24:35,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-08 15:24:35,660 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/9eb77f11d/f5651a892bd84b77b28b746fe674534b/FLAG5972d6064 [2018-12-08 15:24:36,069 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:24:36,069 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-08 15:24:36,073 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/9eb77f11d/f5651a892bd84b77b28b746fe674534b/FLAG5972d6064 [2018-12-08 15:24:36,081 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/9eb77f11d/f5651a892bd84b77b28b746fe674534b [2018-12-08 15:24:36,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:24:36,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:24:36,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:24:36,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:24:36,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:24:36,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343f3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36, skipping insertion in model container [2018-12-08 15:24:36,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:24:36,106 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:24:36,191 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:24:36,193 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:24:36,201 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:24:36,208 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:24:36,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36 WrapperNode [2018-12-08 15:24:36,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:24:36,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:24:36,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:24:36,209 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:24:36,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:24:36,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:24:36,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:24:36,220 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:24:36,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... [2018-12-08 15:24:36,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:24:36,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:24:36,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:24:36,230 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:24:36,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:24:36,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:24:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:24:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:24:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:24:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:24:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:24:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 15:24:36,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 15:24:36,369 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:24:36,369 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 15:24:36,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:36 BoogieIcfgContainer [2018-12-08 15:24:36,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:24:36,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:24:36,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:24:36,372 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:24:36,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:24:36" (1/3) ... [2018-12-08 15:24:36,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1c8834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:24:36, skipping insertion in model container [2018-12-08 15:24:36,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:36" (2/3) ... [2018-12-08 15:24:36,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1c8834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:24:36, skipping insertion in model container [2018-12-08 15:24:36,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:36" (3/3) ... [2018-12-08 15:24:36,373 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_false-unreach-call_true-termination.c [2018-12-08 15:24:36,379 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:24:36,383 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:24:36,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:24:36,409 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:24:36,409 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:24:36,409 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:24:36,409 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:24:36,410 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:24:36,410 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:24:36,410 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:24:36,410 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:24:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-08 15:24:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 15:24:36,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:24:36,423 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:36,424 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:24:36,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:36,427 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-08 15:24:36,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:24:36,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:36,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:36,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:36,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:24:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:36,487 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 15:24:36,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:24:36 BoogieIcfgContainer [2018-12-08 15:24:36,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:24:36,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:24:36,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:24:36,500 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:24:36,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:36" (3/4) ... [2018-12-08 15:24:36,502 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 15:24:36,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:24:36,503 INFO L168 Benchmark]: Toolchain (without parser) took 419.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:36,504 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:36,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.34 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 938.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:36,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.22 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:36,505 INFO L168 Benchmark]: Boogie Preprocessor took 9.97 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:36,505 INFO L168 Benchmark]: RCFGBuilder took 139.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:36,506 INFO L168 Benchmark]: TraceAbstraction took 129.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:36,506 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:36,508 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 124.34 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 938.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.22 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.97 ms. Allocated memory is still 1.0 GB. Free memory is still 938.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 139.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 129.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:24:37,715 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:24:37,716 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:24:37,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:24:37,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:24:37,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:24:37,723 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:24:37,724 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:24:37,725 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:24:37,725 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:24:37,726 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:24:37,726 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:24:37,726 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:24:37,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:24:37,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:24:37,728 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:24:37,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:24:37,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:24:37,730 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:24:37,730 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:24:37,731 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:24:37,731 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:24:37,732 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:24:37,733 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:24:37,733 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:24:37,733 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:24:37,734 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:24:37,734 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:24:37,734 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:24:37,735 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:24:37,735 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:24:37,735 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:24:37,735 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:24:37,736 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:24:37,736 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:24:37,736 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:24:37,736 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 15:24:37,744 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:24:37,744 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:24:37,744 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:24:37,744 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:24:37,744 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 15:24:37,745 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 15:24:37,745 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 15:24:37,745 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 15:24:37,745 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 15:24:37,745 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 15:24:37,745 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:24:37,745 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:24:37,745 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:24:37,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:24:37,746 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:24:37,747 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 15:24:37,747 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2018-12-08 15:24:37,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:24:37,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:24:37,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:24:37,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:24:37,775 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:24:37,775 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-08 15:24:37,809 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/40ea79349/f0ceb4c0b85046f3830e5cb3879a02e2/FLAG112bcd6e7 [2018-12-08 15:24:38,191 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:24:38,191 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-08 15:24:38,195 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/40ea79349/f0ceb4c0b85046f3830e5cb3879a02e2/FLAG112bcd6e7 [2018-12-08 15:24:38,203 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/data/40ea79349/f0ceb4c0b85046f3830e5cb3879a02e2 [2018-12-08 15:24:38,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:24:38,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:24:38,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:24:38,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:24:38,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:24:38,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfa0d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38, skipping insertion in model container [2018-12-08 15:24:38,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:24:38,223 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:24:38,303 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:24:38,307 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:24:38,315 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:24:38,323 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:24:38,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38 WrapperNode [2018-12-08 15:24:38,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:24:38,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:24:38,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:24:38,324 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:24:38,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:24:38,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:24:38,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:24:38,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:24:38,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... [2018-12-08 15:24:38,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:24:38,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:24:38,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:24:38,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:24:38,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:24:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:24:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:24:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:24:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:24:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:24:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:24:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 15:24:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 15:24:38,490 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:24:38,490 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 15:24:38,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:38 BoogieIcfgContainer [2018-12-08 15:24:38,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:24:38,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:24:38,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:24:38,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:24:38,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:24:38" (1/3) ... [2018-12-08 15:24:38,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df141e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:24:38, skipping insertion in model container [2018-12-08 15:24:38,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:38" (2/3) ... [2018-12-08 15:24:38,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df141e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:24:38, skipping insertion in model container [2018-12-08 15:24:38,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:38" (3/3) ... [2018-12-08 15:24:38,494 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_false-unreach-call_true-termination.c [2018-12-08 15:24:38,500 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:24:38,504 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:24:38,513 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:24:38,530 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 15:24:38,531 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:24:38,531 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:24:38,531 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:24:38,531 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:24:38,531 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:24:38,531 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:24:38,531 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:24:38,531 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:24:38,542 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-08 15:24:38,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 15:24:38,545 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:24:38,546 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:38,547 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:24:38,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:38,551 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-08 15:24:38,553 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 15:24:38,553 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 15:24:38,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:38,600 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 15:24:38,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:24:38 BoogieIcfgContainer [2018-12-08 15:24:38,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:24:38,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:24:38,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:24:38,616 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:24:38,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:38" (3/4) ... [2018-12-08 15:24:38,618 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 15:24:38,644 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_88c951d4-60a8-4b2f-9f40-49b28c98e99f/bin-2019/utaipan/witness.graphml [2018-12-08 15:24:38,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:24:38,645 INFO L168 Benchmark]: Toolchain (without parser) took 440.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:38,646 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:38,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.94 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:38,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.85 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:38,647 INFO L168 Benchmark]: Boogie Preprocessor took 12.78 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:38,647 INFO L168 Benchmark]: RCFGBuilder took 140.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:38,648 INFO L168 Benchmark]: TraceAbstraction took 125.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:38,648 INFO L168 Benchmark]: Witness Printer took 28.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:38,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.94 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.85 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.78 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 140.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 125.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Witness Printer took 28.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...